1 files changed, 1 insertions, 4 deletions
diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
index 91b6b84a4213..8a0d474127a1 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
@@ -105,10 +105,7 @@ self: super: {
     url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/hackage-security-0.5.3.0.patch";
     sha256 = "0l8x0pbsn18fj5ak5q0g5rva4xw1s9yc4d86a1pfyaz467b9i5a4";
   });
-  happy = appendPatch super.happy (pkgs.fetchpatch {
-    url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/happy-1.19.11.patch";
-    sha256 = "16m659kxbq0s87ak2y1pqggfy67yfvcwc0zi3hcphf3v8735xhkk";
-  });
+  happy = super.happy;
   hedgehog = appendPatch super.hedgehog (pkgs.fetchpatch {
     url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/hedgehog-0.6.1.patch";
     sha256 = "04xwznd3lfgracfz68ls6vfm19rhq8fb74r6ii0grpv6cx4rr21i";